Tom Karl, Director, National Climatic Data Center

The White House recently put out what it calls “the loudest and clearest alarm bell to date” on climate change. Its new report says global warming is a factor in changing weather from heat waves to bad allergy seasons. Much of the data supplying the national climate debate is housed by the National Oceanic and Atmospheric Administration. Tom Karl, director of NOAA’s National Climatic Data Center, spoke with Federal Drive hosts Tom Temin and Emily Kopp about the work his agency is conducting and the data its collecting.